Folding bicycle handle



F.MAMWA FOLDING BICYCLE HANDLE Aug. 10,1925. 1,595,557

Filed March 9. 1926 5 27 I ,5 15 .21 I 1 I) i 78 is 77 7-5.3 Z8

Patented Aug. 10, 1926.

UNITED STATES FUSAJIRO MAMIYA, 0F LOS ANGELES, CALIFORNIA.

v FOLDING BICYCLE HANDLE.

Application filed March 9, 1926. Serial No. 93,446.

This invention relates to improvements in folding bicycle handles, andits objects are to provide handles which may be quickly adjusted to anoperative position, which may be adjusted to any desired position, andwhich may be adjusted to a collapsed position for convenience inpacking, for portability, or for parking the bicycle.

Another object is to provide means for adjustment whereby the bicyclerider may adjust the handles while riding on the bicycle, and may makethe desired adjustment in two or three seconds of time.

Another object of this invention is to provide an improved and doublelocking means for each handle bar whereby the same is held perfectlyrigid and firm many of its adjusted positions.

To the accomplishment of the foregoing and other objects as mayhereinafter be made to appear, thev invention consists in the featureshereinafter particularly described and then sought to be defined in theclaims, reference being had to the accompanying drawings, in which?Figure 1 is a fragmentary and sectional detail view of a handle bar fora bicycle, showing the locking and adjusting elements. Fig. 2 is afragmentary and top plan view of a handle bar. parts being broken awayto show details of construction. Fig. 3 is a sectional detail view ofone of the handle adjusting elements, the gear member being shown infull lines. Fig. 1 is a plan view of the handle bars. 7

Referring in detail to the drawings, the central tubular portion 11, isadapted to be clamped in a bicycle frame, and has a clamp 12, integraltherewith, and adapted to hold the transverse central bar 13 in anyposition of adjustment; the clamp having a screw member 14, serving tosecure the clamp to bar 13.

Bar 13' is provided at each end, with angular extensions 15, each havinga toothed extremity 16. The extensions 15, have the geared or toothedextremity 16, brazed the eto, and are secured to said central bar 13, bya screw member 17 in engagement with 'a. clamp member 18, and passingthrough a hole 19, in the collar portion 20, of the member 15. Eachadjustable member 21, is provided with an eye-end 22, adapted toencircle a gear-toothed member 16, and is proyided with a slot 23, inwhich i mounted two opposed pawls 24;, adapted to engage with saidtoothed member 16. The spring 25, interposed between opposed pawls,serves to actuate them and to maintain them in operative engagement withthe toothed member 16, and thereby hold the handle bar in its adjustedpostion. The pawls are mounted on pivot pins or shafts 26, and arereleased from their operativeengagement with said members 16, bydepressing the outer extremities 27, of the pawls. Each handle bar 21 isretained in position by a screwniember 28, which is in engagement with acorresponding extremity The screw member 28 is screwed against theshoulder 29, thereby allowing the eye-end 22, to turn freely when theholding pawls 24 are released. This arrangement allows the handles 30 tobe quickly adjusted to any desired position.

From the foregoing description and drawings, it may be seen that I haveprovided simple and eiiicient means for adjustment of handle bars,whereby the handle bars may be adjusted to different positions foroperative use, and whereby they may be adjusted to a relativelycollapsed position to allow the bicycle to be stored, or for purposes ofportability. The folding joint described is applicable for analogouspurposes and in analogous ways.

What is claimed is 1. Foldable bicycle handles, comprising a central barmember, angular extensions fixed thereto, toothed extremities on thesaid angular extensions, movable handle bars including eye-ends adaptedto revolve upon said toothed extremities, said handle bars each having aslot therein adjacent to the corresponding eye-end, pawls operativelymounted in said slots, and a spring element interposed between opposedpawls to hold them in operative engagement with a corresponding toothedextremity.

2. Foldable bicycle handles, comprising a central bar member, angularextensions fixed thereto, said angular extensions having each a toothedextremity, a movable handle bar including a handle, rotatively connectedto each toothed extremity, a pair of opposed'pawls arranged to hold eachhandle bar in a relatively fixed position upon a corresponding toothedextremity, said pawls engaging with said toothed extremity, and a screwmember in engagement with each toothed extremity and s rving to retain ah ndle bar in operative each end thereof, a handlebar operatively'mounted on each extension, retaining means to hold the handle bar inopemtive position, and opposed locking pawls carried by each handle barand in engagement with a corre sponding toothed extremity.

l. Foldable bicycle handles, con' prisii'ig a central post adapted to beclamped to a bicycle frame, a clamp at. the top of thepost,

a central bar adjustably mounted in said clamp, angula'rly disposedextensions one at each end of said central bar, a toothed extremity oneach extension, a movable handle bar including anveye-end revoluble oneach toothed extremity, said toothed ex tremi-ty extending in saideye-end, a pair of opposed pawls operatively mounted on each handle bar,and engaging with a toethed extremity and on opposite sides thereof, anda spring elementinterposed between each pair of opposed paWls.

FUSAJTRO 'h ii ilvi.

